//
// Created by iTuring on 2020/9/15.
//
#include "game.h"

void InitBoard(char board[ROW][COL], int row, int col) {
    for (int i = 0; i < row; ++i) {
        for (int j = 0; j < col; ++j) {
            board[i][j] = ' ';
        }
    }
}

/*
*    |   |
* ---|---|---
*    |   |
* ---|---|---
*    |   |
*/
void DisplayBoard(char board[ROW][COL], int row, int col) {
    for (int i = 0; i < row; ++i) {
        //1.打印一行的数据
        //printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);
        for (int j = 0; j < col; ++j) {
            printf(" %c ", board[i][j]);
            if (j < col - 1) printf("|");
        }
        printf("\n");
        //2.打印分割行
        if (i < row - 1) {
            for (int j = 0; j < col; ++j) {
                printf("---");
                if (j < col - 1) printf("|");
            }
            printf("\n");
        }
    }
}

void PlayerMove(char board[ROW][COL], int row, int col) {
    printf("玩家走：>\n");
    printf("请输入要下的坐标：>");
    int x, y;
    scanf("%d%d", &x, &y);
    //判断x，y坐标的合法性
    while (1) {
        if (x >= 1 && x <= row && y >= 1 && y <= col) {
            if (board[x - 1][y - 1] == ' ') {
                board[x - 1][y - 1] = '*';
                break;
            } else
                printf("该坐标已经有棋子!\n");
        } else {
            printf("坐标非法，请重新输入!\n");
        }
    }
}

void ComputerMove(char board[ROW][COL], int row, int col) {
    int x;
    int y;
    printf("电脑走：>\n");
    while (1) {
        x = rand() % row;
        y = rand() % col;
        if (board[x][y] = ' ') {
            board[x][y] = '#';
            break;
        }
    }
}

//返回1表示棋盘满了，返回0表示棋盘没满
int IsFull(char board[ROW][COL], int row, int col){
    for (int i = 0; i < row; ++i) {
        for (int j = 0; j < col; ++j) {
            if (board[i][j] == ' ') return 0;
        }
    }
    return 1;
}

char IsWin(char board[ROW][COL], int row, int col) {
    //横三行
    for (int i = 0; i < row; ++i) {
        if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ') return board[i][0];
    }
    //竖三列
    for (int i = 0; i < col; ++i) {
        if (board[0][i] ==  board[1][i] && board[1][i] == board[2][i] && board[0][i] != ' ') return board[0][i];
    }
    //两个对角线
    if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[0][0] != ' ') return board[0][0];
    if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[0][2] != ' ') return board[0][2];
    //是否平局
    if (1 == IsFull(board, ROW, COL)) return 'Q';else return 'C';
}
